On melting of boron subnitride B13N2 under pressure

Abstract

Melting of rhombohedral boron subnitride B13N2 has been studied in situ at pressures to 8 GPa using synchrotron X-ray diffraction and electrical resistivity measurements. It has been found that above 2.6 GPa B13N2 melts incongruently, and the melting curve exhibits positive slope of 31(3) K/GPa that points to a lower density of the melt as compared to the solid phase.

References in corpus (3)

• Thermodynamic aspects of materials' hardness: prediction of novel superhard high-pressure phases
• On melting of B4C boron carbide under pressure
• On electrical conductivity of melts of boron and its compounds under pressure

Cited by in corpus (6)

• Mechanical properties of superhard boron subnitride B13N2
• Phase diagram of the B-BN system at pressures up to 24 GPa: Experimental study and thermodynamic analysis
• Thermal expansion of boron subnitrides
• First principles investigations of electronic and magnetic properties of new rh.-B12N3
• First-principles studies of the electronic and magnetic structures and bonding properties of boron subnitride B${}_{13}$N${}_2$
• Melting and decomposition of orthorhombic B6Si under high pressure